If your problem persists, please collect and save your browser's console log via the process explained here:
Method 1: Using Keyboard Shortcuts
+ Press Ctrl + Shift + J on Windows or Linux.
+ Press Cmd + Option + J on macOS.
(Alternatively, you can press F12 or Ctrl + Shift + I and then click on the Console tab at the top of the panel).
Method 2: Using the Right-Click
+ Right-click anywhere on the web page where codex has crashed.
+ Select Inspect from the menu.
+ Click the Console tab at the top of the newly opened panel.
Saving Console Logs (Errors & Text)
+ Right-click anywhere inside the Console text window.
+ Select Save as... from the menu.
+ Choose a location to save the .log text file.
Upload this file below.